1Z0-1123-25 Question 79
Select 2You are migrating a critical application consisting of 20 VMware virtual machines from your on-premises data center to Oracle Cloud VMware Solution using Hybrid Cloud Extension (HCX). The application must preserve its original IP addresses to avoid reconfiguration, and it also requires minimal downtime during the migration. Which two actions should you take to meet these requirements?
- A
Use HCX vMotion migration for near-zero downtime.
- B
Establish a Layer 2 extension (Network Extension) from on-premises to Oracle Cloud to preserve existing IP addresses.
- C
Perform Bulk Migration to copy data offline and then finalize the cutover to reduce downtime.
- D
Assign a new IP range in the Oracle Cloud environment and update all application configurations accordingly.
- E
Power off the application VMs on-premises before beginning the migration to ensure data consistency.
Show answer and explanation
Correct answers: A, B
Explanation
To achieve minimal downtime and maintain existing IP addresses, you should use HCX vMotion (or other HCX live migration options) in conjunction with a Layer 2 network extension. This ensures that the VMs can continue using the same IP addresses during and after the move, thereby avoiding reconfiguration and reducing downtime. Refer to Oracle� documentation on Hybrid Cloud Extension and Oracle Cloud VMware Solution for detailed best practices on migration strategies and networking configurations.
- A. Correct.
Option 1 is CORRECT. HCX vMotion migration enables near-zero downtime by transferring active workloads without shutting down VMs on-premises. This is critical for applications requiring high availability during the migration.
- B. Correct.
Option 2 is CORRECT. Establishing a Layer 2 extension (Network Extension) allows you to keep the same subnets and IP addresses in the cloud, eliminating the need to re-IP the VMs and ensuring a seamless transition for the application.
- C. Incorrect.
Option 3 is INCORRECT. Bulk Migration involves a replication phase and a cutover window that can incur noticeable downtime. While it can be suitable for large-scale moves, it is less optimal for workloads requiring near-zero downtime.
- D. Incorrect.
Option 4 is INCORRECT. Changing IP ranges would break the requirement to preserve existing IP addresses and would necessitate reconfiguration of the application, increasing complexity and downtime.
- E. Incorrect.
Option 5 is INCORRECT. Powering off the on-premises VMs before migration might simplify data consistency, but it undermines the minimal downtime requirement, as the application would be offline during the entire migration process.